Watson described the purpose of psychology as: âTo predict, given the stimulus, what reaction will take place; or, given the reaction, state what the situation or stimulus is that has caused the reactionâ (1930, p. 11). * All behavior is learnt from the environment.
Additional tests including penetration,solubility, and ductility are made on the residue. Cutback asphalt grades and tests There are several grades for each of the three types ofcutbacks â rapid curing (RC), medium curing (MC), andslow curing, (SC). The grades include 70, 250, 800, and3000.
The majority of asphalt used in Canada is the emulsified asphalt type. Based on a study conducted for Environment Canada in 2010, 301 kilotonnes (kt) of liquefied asphalt were used in Canada in 2009, 85 percent of which was emulsified asphalt while 15 percent was cutback asphalt.